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Planarian regeneration begins with a specific gene activation caused by injury, essential for healing and tissue regrowth.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Hair follicles help absorb and store topical compounds, aiding targeted drug delivery.

Stem cell niches are crucial for regulating stem cell renewal and differentiation, and understanding them can help in developing regenerative therapies.

Artificial skin development has challenges, but new materials and understanding cell behavior could improve tissue repair. Also, certain growth factors and hydrogel technology show promise for advanced skin replacement therapies.

Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.

Melatonin may benefit skin health and could be a promising treatment in dermatology.

Hair follicle dermal stem cells are key for regenerating parts of the hair follicle and determining hair type.

Cancer treatments targeting specific cells and the immune system can cause skin, mouth, hair, and nail problems, affecting patients' quality of life and treatment adherence.

Epigenetic changes control how adult stem cells work and can lead to diseases like cancer if they go wrong.

Bone Morphogenetic Proteins (BMPs) help control skin health, hair growth, and color, and could potentially be used to treat skin and hair disorders.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.

Oestrogens are key for bone growth during puberty in both boys and girls.

Lower doses of treatments for hirsutism and acne in PCOS are effective and cause fewer side effects.

CDP is crucial for lung and hair follicle cell development.

Stem cell niches support, regulate, and coordinate stem cell functions.

Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

TGF-β is crucial for controlling stem cell behavior and changes in its signaling can lead to diseases like cancer.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

Nanoparticles improve drug delivery through the skin but more research is needed on their long-term effects and skin penetration challenges.

Silver can help prevent and treat infections but its effectiveness varies and should be weighed against costs and side effects.

Cancer cells often have more copies of TERT and TERC genes, which helps them grow and could affect patient outcomes.

Lupus affects the body and skin, causing joint pain and skin issues that can be treated with steroids and antimalarial drugs.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Some viruses can cause cancer by changing cell processes and avoiding the immune system; vaccines and targeted treatments help reduce these cancers.

Taxane chemotherapy can cause skin, hair, and nail side effects, which are often under-reported and can affect patient quality of life.

Hair follicles may soon be used more for targeted and systemic drug delivery.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

Transplant success has improved with better immunosuppressive drugs and donor matching.